There are
1,406 mi
from Amarillo, TX to Petaluma, CA
That's the driving distance. It would take 1 day 1 hour to go from Amarillo, Texas to Petaluma, California.
The flight distance (direct flight from Amarillo, TX to Petaluma, CA) is 1,168.22 mi.
1,406 mi = 1.61 kms